1292945005 has 8 divisors (see below), whose sum is σ = 1692582624. Its totient is φ = 940323600.

The previous prime is 1292944987. The next prime is 1292945009. The reversal of 1292945005 is 5005492921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1292945005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292945009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11753991 + ... + 11754100.

It is an arithmetic number, because the mean of its divisors is an integer number (211572828).

Almost surely, 2^1292945005 is an apocalyptic number.

It is an amenable number.

1292945005 is a deficient number, since it is larger than the sum of its proper divisors (399637619).

1292945005 is a wasteful number, since it uses less digits than its factorization.

1292945005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23508107.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1292945005 is about 35957.5444795665. The cubic root of 1292945005 is about 1089.4150004562.

The spelling of 1292945005 in words is "one billion, two hundred ninety-two million, nine hundred forty-five thousand, five".